Common Problems

Debian 11 — timeshift — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — timeshift — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-10174 Upstream summary: init_tmp in TeeJee.FileSystem.vala in Timeshift before 20.03 unsafely reuses a preexisting temporary directory in the predictable location /tmp/timeshift. It follows symlinks in this location or […]

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Debian 10 — nettle — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — nettle — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2022 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3580 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 11 — nagstamon — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nagstamon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4114 Upstream summary: The automatic update request in Nagstamont before 0.9.10 uses a cleartext base64 format for transmission of a username and password, which allows remote attackers to […]

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Gentoo Linux — app-admin/apache-tools — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-admin/apache-tools — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-20 Related CVEs: CVE-2021-33193 CVE-2021-34798 CVE-2021-36160 CVE-2021-39275 CVE-2021-40438 CVE-2021-41524 CVE-2021-41773 CVE-2021-42013  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Apache HTTPD. Please review the CVE identifiers referenced below for details. […]

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Debian 11 — nss-pam-ldapd — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nss-pam-ldapd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-0288 Upstream summary: nss-pam-ldapd before 0.7.18 and 0.8.x before 0.8.11 allows context-dependent attackers to cause a denial of service (application crash) and possibly execute arbitrary code by performing […]

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Ubuntu 20.04 — python-bleach — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-bleach — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 February 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8077-1 Related CVEs: CVE-2020-6816 CVE-2021-23980 CVE-2018-7753 CVE-2020-6802 CVE-2020-6817 Upstream summary: It was discovered that Bleach did not properly sanitize URI attributes containing character entities. An attacker could possibly use this […]

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Ubuntu 16.04 — policykit-1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — policykit-1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 February 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5252-2 Related CVEs: CVE-2021-4034 CVE-2019-6133 CVE-2018-19788 CVE-2015-3218 CVE-2015-3255 CVE-2015-4625 CVE-2018-1116 Upstream summary: USN-5252-1 fixed a vulnerability in policykit-1. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu […]

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Oracle Linux 8 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bluez — vulnerability — patch and remediation guide (ELSA-2022-2081)

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-2081 Related CVEs: CVE-2021-41229 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 11 — nvidia-graphics-drivers-tesla-450 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nvidia-graphics-drivers-tesla-450 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-1052 CVE-2021-1053 CVE-2021-1056 CVE-2021-1076 CVE-2021-1077 CVE-2021-1093 CVE-2021-1094 CVE-2021-1095  +12 more Upstream summary: NVIDIA GPU Display Driver for Windows and Linux, all versions, contains a vulnerability in the kernel […]

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Arch Linux — chromium — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — chromium — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-31 Related CVEs: CVE-2021-30553 CVE-2021-30552 CVE-2021-30551 CVE-2021-30550 CVE-2021-30549 CVE-2021-30548 CVE-2021-30547 CVE-2021-30546  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 91.0.4472.77-2. Fixed in: 91.0.4472.101-1. Group: AVG-2057. Table of contents […]

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